package com.company;

import java.util.Scanner;

public class Main32 {
    public static void main(String[] args) {
        Scanner sr =new Scanner(System.in);
        int a ,l,d,r,s1,s2,s3;
        a=sr.nextInt();
        l=sr.nextInt();
        d=sr.nextInt();
        r=sr.nextInt();
        s1=a*a;
        s2=l*d;
        s3= (int) (3.14*r*r);
        if (s1>s2&&s1>s3){
            System.out.println("正方形");
        } else if(s2>s1&&s2>s3)
        {
            System.out.println("长方形");
        }
        else System.out.println("圆形");

    }
}
